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History for Washington, DC
Saturday, August 29, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
80 °F
|
76 °F
|
|
| Max Temperature |
87 °F
|
85 °F
|
98 °F
(1953) |
| Min Temperature |
73 °F
|
68 °F
|
49 °F
(1986) |
| Degree Days |
| Heating Degree Days |
0 |
0 |
|
| Month to date heating degree days |
0 |
0 |
|
| Since 1 June heating degree days |
5 |
6 |
|
| Since 1 July heating degree days |
0 |
0 |
|
| Cooling Degree Days |
15 |
11 |
|
| Month to date cooling degree days |
450 |
383 |
|
| Year to date cooling degree days |
1230 |
1288 |
|
| Since 1 June cooling degree days |
1100 |
1154 |
|
| Growing Degree Days | 30 (Base 50) |
|
|
| Moisture |
| Dew Point |
70 °F
|
|
|
| Average Humidity |
72 |
|
|
| Maximum Humidity |
93 |
|
|
| Minimum Humidity |
51 |
|
|
| Precipitation |
| Precipitation |
0.02 in
|
0.09 in
|
2.84 in
(1875) |
| Month to date precipitation |
2.46 |
2.75 |
|
| Year to date precipitation |
26.66 |
26.22 |
|
| Snow |
| Snow |
0.00 in
|
0.00 in
|
-
() |
| Month to date snowfall |
0.0 |
0.0 |
|
| Since 1 July snowfall |
0.0 |
0.0 |
|
| Snow Depth |
0.00 in
|
|
|
| Sea Level Pressure |
| Sea Level Pressure |
29.78 in
|
|
|
| Wind |
| Wind Speed |
5 mph
(ESE) |
|
|
| Max Wind Speed |
22 mph
|
|
|
| Max Gust Speed |
24 mph
|
|
|
| Visibility |
9 miles
|
|
|
| Events |
Rain
|
|
|
|
| Key: T is trace of precipitation, MM is missing value |
|
Source: NWS Daily Summary |
| Time(EDT) | Temperature | Dew Point | Humidity | Sea Level Pressure | Visibility | Wind Direction | Wind Speed | Gust Speed | Precipitation | Events | Conditions |
|---|
| 12:52 AM |
73.0 °F
|
69.1 °F
|
87% |
29.91 in
|
10.0 miles
|
ESE |
5.8 mph
|
-
|
0.00 in
|
Rain
|
Light Rain |
| 1:52 AM |
73.0 °F
|
69.1 °F
|
87% |
29.88 in
|
10.0 miles
|
Calm |
Calm |
-
|
0.00 in
|
|
Overcast |
| 2:52 AM |
73.0 °F
|
70.0 °F
|
90% |
29.86 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 3:25 AM |
73.4 °F
|
69.8 °F
|
88% |
29.85 in
|
10.0 miles
|
NE |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 3:38 AM |
73.4 °F
|
69.8 °F
|
88% |
29.85 in
|
10.0 miles
|
NE |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 3:52 AM |
73.0 °F
|
70.0 °F
|
90% |
29.84 in
|
10.0 miles
|
North |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 4:10 AM |
73.4 °F
|
69.8 °F
|
88% |
29.84 in
|
10.0 miles
|
NNE |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 4:39 AM |
73.4 °F
|
69.8 °F
|
88% |
29.82 in
|
10.0 miles
|
NE |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 4:52 AM |
73.0 °F
|
70.0 °F
|
90% |
29.81 in
|
9.0 miles
|
NNE |
4.6 mph
|
-
|
0.01 in
|
Rain
|
Light Rain |
| 5:52 AM |
73.0 °F
|
70.0 °F
|
90% |
29.80 in
|
10.0 miles
|
NNE |
5.8 mph
|
-
|
0.00 in
|
|
Overcast |
| 6:03 AM |
73.4 °F
|
69.8 °F
|
88% |
29.80 in
|
9.0 miles
|
NNE |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 6:29 AM |
73.4 °F
|
69.8 °F
|
88% |
29.81 in
|
5.0 miles
|
ENE |
8.1 mph
|
-
|
N/A |
|
Overcast |
| 6:36 AM |
73.4 °F
|
69.8 °F
|
88% |
29.81 in
|
5.0 miles
|
ENE |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 6:52 AM |
73.0 °F
|
70.0 °F
|
90% |
29.82 in
|
5.0 miles
|
ENE |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 7:52 AM |
73.0 °F
|
71.1 °F
|
93% |
29.81 in
|
6.0 miles
|
ENE |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 8:52 AM |
73.9 °F
|
71.1 °F
|
91% |
29.78 in
|
8.0 miles
|
NE |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 9:22 AM |
73.4 °F
|
71.6 °F
|
94% |
29.77 in
|
8.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 9:52 AM |
75.0 °F
|
71.1 °F
|
87% |
29.77 in
|
9.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 10:08 AM |
75.2 °F
|
71.6 °F
|
89% |
29.77 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 10:23 AM |
75.2 °F
|
71.6 °F
|
89% |
29.78 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 10:42 AM |
75.2 °F
|
71.6 °F
|
89% |
29.78 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 10:49 AM |
75.2 °F
|
71.6 °F
|
89% |
29.78 in
|
10.0 miles
|
West |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 10:52 AM |
75.9 °F
|
70.0 °F
|
82% |
29.78 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 11:36 AM |
78.8 °F
|
71.6 °F
|
78% |
29.78 in
|
10.0 miles
|
Calm |
Calm |
-
|
0.00 in
|
|
Mostly Cloudy |
| 11:40 AM |
78.8 °F
|
71.6 °F
|
78% |
29.78 in
|
10.0 miles
|
SSE |
3.5 mph
|
-
|
0.00 in
|
|
Mostly Cloudy |
| 11:52 AM |
79.0 °F
|
72.0 °F
|
79% |
29.78 in
|
10.0 miles
|
SSE |
3.5 mph
|
-
|
0.00 in
|
|
Mostly Cloudy |
| 12:24 PM |
78.8 °F
|
71.6 °F
|
78% |
29.76 in
|
10.0 miles
|
South |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 12:30 PM |
80.6 °F
|
71.6 °F
|
74% |
29.76 in
|
10.0 miles
|
Variable |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 12:36 PM |
80.6 °F
|
71.6 °F
|
74% |
29.76 in
|
10.0 miles
|
SSE |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 12:52 PM |
79.0 °F
|
71.1 °F
|
77% |
29.75 in
|
10.0 miles
|
SE |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 12:56 PM |
78.8 °F
|
71.6 °F
|
78% |
29.75 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 1:09 PM |
82.4 °F
|
71.6 °F
|
70% |
29.74 in
|
10.0 miles
|
West |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:15 PM |
82.4 °F
|
69.8 °F
|
66% |
29.74 in
|
10.0 miles
|
WSW |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:24 PM |
82.4 °F
|
69.8 °F
|
66% |
29.74 in
|
10.0 miles
|
West |
10.4 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 PM |
84.0 °F
|
68.0 °F
|
58% |
29.73 in
|
10.0 miles
|
Variable |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 PM |
84.0 °F
|
66.9 °F
|
56% |
29.72 in
|
10.0 miles
|
ESE |
3.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 3:52 PM |
86.0 °F
|
66.9 °F
|
53% |
29.71 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 4:52 PM |
84.0 °F
|
69.1 °F
|
61% |
29.71 in
|
10.0 miles
|
South |
9.2 mph
|
-
|
N/A |
|
Scattered Clouds |
| 5:31 PM |
82.4 °F
|
69.8 °F
|
66% |
29.71 in
|
10.0 miles
|
South |
10.4 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
82.9 °F
|
70.0 °F
|
65% |
29.72 in
|
10.0 miles
|
South |
10.4 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
82.9 °F
|
70.0 °F
|
65% |
29.72 in
|
10.0 miles
|
South |
10.4 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 7:21 PM |
82.4 °F
|
71.6 °F
|
70% |
29.73 in
|
10.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 7:52 PM |
81.0 °F
|
69.1 °F
|
67% |
29.74 in
|
10.0 miles
|
SSW |
17.3 mph
|
23.0 mph
|
N/A |
|
Mostly Cloudy |
| 8:14 PM |
78.8 °F
|
66.2 °F
|
65% |
29.76 in
|
10.0 miles
|
SW |
13.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:52 PM |
79.0 °F
|
66.0 °F
|
64% |
29.79 in
|
10.0 miles
|
West |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 9:52 PM |
77.0 °F
|
66.0 °F
|
69% |
29.81 in
|
10.0 miles
|
NW |
8.1 mph
|
-
|
N/A |
|
Overcast |
| 10:52 PM |
75.9 °F
|
66.9 °F
|
74% |
29.81 in
|
10.0 miles
|
SSW |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 11:52 PM |
75.0 °F
|
70.0 °F
|
84% |
29.82 in
|
7.0 miles
|
Calm |
Calm |
-
|
0.00 in
|
Rain
|
Light Rain |
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